News tagged with cells
Spanish researchers have discovered that the daily clearance of neutrophils from the body stimulates the release of hematopoietic stem cells from the bone marrow into the bloodstream, according to a report published today ...
Medical research 12 minutes ago | not rated yet | 0
A discovery made in fish could aid research into motor neuron disease.
Medical research 19 minutes ago | not rated yet | 0
Scientists have uncovered a survival mechanism that occurs in breast cells that have just turned premalignant-cells on the cusp between normalcy and cancers-which may lead to new methods of stopping tumors.
Cancer 20 minutes ago | not rated yet | 0 |
Bochum's medics have succeeded in treating cerebral palsy with autologous cord blood. Following a cardiac arrest with severe brain damage, a 2.5 year old boy had been in a persistent vegetative state – with minimal chances ...
Medical research 29 minutes ago | not rated yet | 0
As the human body fine-tunes its neurological wiring, nerve cells often must fix a faulty connection by amputating an axon—the "business end" of the neuron that sends electrical impulses to tissues or other ...
Neuroscience 29 minutes ago | not rated yet | 0 |
Researchers at Lund University have succeeded in preventing very early symptoms of Huntington's disease, depression and anxiety, by deactivating the mutated huntingtin protein in the brains of mice.
Neuroscience 47 minutes ago | not rated yet | 0
A known difficulty in fighting influenza (flu) is the ability of the flu viruses to mutate and thus evade various medications that were previously found to be effective. Researchers at the Hebrew University of Jerusalem have ...
Diseases, Conditions, Syndromes 1 hour ago | not rated yet | 0 |
New techniques in imaging of brain activity developed by Jean Gotman, from McGill University's Montreal Neurological Institute, and his colleagues lead to improved treatment of patients suffering from epilepsy. The combination ...
Neuroscience 2 hours ago | not rated yet | 0
Aggressive forms of bladder cancer involve the protein PODXL – a discovery that could hold the key to improved treatment, according to researchers at Lund University, Uppsala University and KTH in Sweden.
Cancer 3 hours ago | 5 / 5 (1) | 0
For the first time, physicists from the Max Planck Institute for Extraterrestrial Physics (MPE), biologists and physicians demonstrated the synergistic effect of cold atmospheric plasma - a partly ionized ...
Cancer 3 hours ago | 5 / 5 (1) | 0 |
(Medical Xpress)—Scientists at Emory Vaccine Center have shown that an immune regulatory molecule called IL-21 is needed for long-lasting antibody responses in mice against viral infections.
Immunology 4 hours ago | 5 / 5 (1) | 0 |
(Medical Xpress)—The first symptoms of major depression may be behavioral, but the common mental illness is based in biology—and not limited to the brain.
Psychology & Psychiatry 4 hours ago | 5 / 5 (2) | 0 |
(Medical Xpress)—Researchers at the University of Virginia School of Medicine have identified a promising target for treating glioblastoma, one that appears to avoid many of the obstacles that typically frustrate efforts ...
Cancer 4 hours ago | 3.5 / 5 (2) | 0 |
Human breastmilk responds quickly to protect the child when there is an infection in mothers or babies, according to new international research led by The University of Western Australia.
Immunology 4 hours ago | 5 / 5 (1) | 0
Researchers have developed a new drug delivery system that allows inhalation of chemotherapeutic drugs to help treat lung cancer, and in laboratory and animal tests it appears to reduce the systemic damage ...
Cancer 22 hours ago | 5 / 5 (1) | 0 |
The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life. Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.) The largest known cell is an unfertilized ostrich egg cell.
In 1835 before the final cell theory was developed, a Czech Jan Evangelista Purkyně observed small "granules" while looking at the plant tissue through a microscope. The cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells. All cells come from preexisting cells. Vital functions of an organism occur within cells, and all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.
The word cell comes from the Latin cellula, meaning, a small room. The descriptive name for the smallest living biological structure was chosen by Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.
For more information about Cell (biology), read the full article at
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